3.4.2 DNA and protein synthesis

Question 1

Describe the process of Translation. (7 marks)

Answer 1

• mRNA attaches to the ribosome at a start codon.

• tRNA with a complimentary anticodon attaches to the mRNA codon.

• This tRNA is attached to a specific amino acid.

• Amino acids are joined by a peptide bond.

• Using energy from ATP.

• tRNA is released from the ribosomes and a new one enters.

• Ribosomes move along the mRNA to synthesise a complete polypetide.